10 November 1995 Modern approaches for absolute phase measurement
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Proceedings Volume 2647, International Conference on Holography and Correlation Optics; (1995) https://doi.org/10.1117/12.226744
Event: International Conference on Holography and Correlation Optics, 1995, Chernivsti, Ukraine
Abstract
This paper deals with investigations of optical shape measurement and contouring techniques with respect to precise measuring of primary phase data and determination of the object shape. A robust procedure for the measurement of absolute phase values with high accuracy is presented. This procedure is based on a precision adapted control of the system parameters determining the orientation or frequency of the fringe pattern and the stepwise reconstruction of the continuous phase field without phase unwrapping. The determination of the control sequence is oriented on the phase measuring accuracy and the known limits of the absolute phase. Using these unambiguous measuring data the object shape and its coordinates can be determined.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Wolfgang Osten, Peter Andrae, Werner Nadeborn, Werner P. O. Jueptner, "Modern approaches for absolute phase measurement", Proc. SPIE 2647, International Conference on Holography and Correlation Optics, (10 November 1995); doi: 10.1117/12.226744; https://doi.org/10.1117/12.226744
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